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Weather in Routt County, Colorado for September 2025

Your guide to Routt County weather in September - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Routt County during September is quite rare, with fewer than 2 snowy days on average.
    According to Routt County snow forecast for September 2025, 1 snowy day is expected until the end of the month at Monday, September 29.

  • Temperatures

  • Until now, September 2025 in Routt County is slightly cooler than the historical average by -1.2 °F.

  • The forecast for the next days in Routt County predicts a temperature of 19.9 °F, which is cooler than the historical average.

  • In general, the average temperature in Routt County at the beginning of September is 25.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.6 °F by the end of September.

  • Rain 🌧️

  • Routt County experiences moderate rainfall in September, with an average of 7 rainy days and a total precipitation of 62.7 mm.

  • More

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Average dry days
23
Dry days
Average rainy days
7
Rainy days
Average snowy days
0
Snow days
Average temperatures
23°/5°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
42 %
Avg humidity

Routt County Weather September

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Temperatures trend during September in Routt County

See the weather trend as well as the moving average line

September weather in Routt County day by day

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Date Weather Temperatures Rain Snow More
Sept. 1 Sunny
Sunny
27° /6° 0 mm 0 cm
Sept. 2 Patchy rain possible
Patchy rain possible
27° /6° 0.2 mm 0 cm
Sept. 3 Patchy rain possible
Patchy rain possible
26° /7° 1 mm 0 cm
Sept. 4 Light drizzle
Light drizzle
25° /6° 0.6 mm 0 cm
Sept. 5 Partly cloudy
Partly cloudy
24° /4° 0.9 mm 0 cm
Sept. 6 Sunny
Sunny
25° /4° 0 mm 0 cm
Sept. 7 Sunny
Sunny
25° /5° 2.2 mm 0 cm
Sept. 8 Partly cloudy
Partly cloudy
25° /5° 0 mm 0 cm
Sept. 9 Patchy rain possible
Patchy rain possible
25° /6° 0.1 mm 0 cm
Sept. 10 Patchy rain possible
Patchy rain possible
26° /5° 0.1 mm 0 cm
Sept. 11 Patchy rain possible
Patchy rain possible
22° /6° 0.9 mm 0 cm
Sept. 12 Partly cloudy
Partly cloudy
22° /5° 3 mm 0 cm
Sept. 13 Sunny
Sunny
19° /3° 12.2 mm 0 cm
Sept. 14 Sunny
Sunny
21° /3° 5.2 mm 0 cm
Sept. 15 Patchy rain possible
Patchy rain possible
22° /4° 0.2 mm 0 cm
Sept. 16 Partly cloudy
Partly cloudy
22° /4° 0 mm 0 cm
Sept. 17 Patchy rain possible
Patchy rain possible
17° /5° 1.5 mm 0 cm
Sept. 18 Sunny
Sunny
19° /5° 0 mm 0 cm
Sept. 19 Sunny
Sunny
23° /3° 0 mm 0 cm
Sept. 20 Patchy rain possible
Patchy rain possible
21° /5° 1.2 mm 0 cm
Sept. 21 Patchy rain possible
Patchy rain possible
14° /3° 1.4 mm 0 cm
Sept. 22 Sunny
Sunny
20° /3° 0 mm 0 cm
Sept. 23 Sunny
Sunny
23° /2° 0 mm 0 cm
Sept. 24 Partly cloudy
Partly cloudy
24° /5° 0 mm 0 cm
Sept. 25 Sunny
Sunny
22° /5° 0 mm 0 cm
Sept. 26 Sunny
Sunny
26° /5° 0 mm 0 cm
Sept. 27 Patchy rain possible
Patchy rain possible
20° /2° 0.9 mm 0 cm
Sept. 28 Patchy rain possible
Patchy rain possible
19° /-2° 0.3 mm 0 cm
Sept. 29 Patchy rain possible
Patchy rain possible
9° /-4° 1.2 mm 0.5 cm
Sept. 30 Sunny
Sunny
24° /9° 0 mm 0 cm
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Important Notice
Our weather forecast for Routt County in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Routt County forecast closer to your planned date for the most up-to-date weather information.

Routt County in September - FAQ

What are the expected maximum and minimum temperatures in Routt County during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 5°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Routt County during September?
Moderate rainfall is anticipated in Routt County during September, with a total of 62.7 mm spread over approximately 7 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Routt County during September?
The average wind speed in Routt County during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

Routt County snow forecast September 2025

Track daily snowfall levels and discover Routt County’s snowy potential this September ❄️

September rainfall patterns in Routt County

Explore the daily rainfall trends and prepare for Routt Countys September weather 💧

UV exposure in Routt County during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Routt County?

Get accurate weather forecasts for Routt County, located at latitude 40.485 and longitude -106.832. Stay updated with localized weather information tailored for Routt County.

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